Blue-flame oil-stove.



'PATENTED FEB. 10, 1903.

BLUE FLAME OIL STOV E.. APPLIOA'LION riLnn SEPT. 23, 1902.

N 0 D R E F W G 2 SH EETSSHEET 1.

X0 MODEL.

wiluvzooao PATENTED FEB. 10, 1903.

G. W. PERDON. BLUE FLAME OILSTOVE.

APPLIUATION FILED SEPT. 23, 1902.

1T0 MODEL.

UNIT D STATES PATENT OFFICE.

GUY W. FERDON, OF BROOKLYN, NEW YORK, ASSIGNOR TO SILVER 85 CO.,

' OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

BLUE-FLAM E OIL-STOVE.

SPECIFICATION formingpart of Letters Patent No. 720,123, dated February 10, 1903.

Application filed September 23, 1902. Serial No.1 24,5 78. (No model.)

T at whom it may concern.-

Be it known that I, GUY W. FERDON, a citizen of the United States of America, and a resident of the borough of Brooklyn, New York city, in the State of New York, have invented a new and useful Improvement in Blue-Flame Oil-Stoves, of which the following is a specification.

This invention consists in certain improvements on the blue-flame oil-stoves heretofore made.

The objects of this invention are to effect a better combustion of the oil by a more proper admixture of air with the vapor, to produce a more even and steady flame of uniform height and that will not flare up, to produce a more nearly odorless flame and a more easily lightable flame, and to wholly dispense with diaphragms within the combustion-drum.

Two sheets of drawings accompany this specification as part thereof.

Figure 1 is a perspective view of an oilstove burner and its appurtenances with the combustion-drum removed, illustrating this invention. Fig. 2 represents an axial crosssection through the burner, partly in elevation, with the combustion-drum in place. Fig. 3 is a fragmentary section showing a preferred valve; and Figs. 4, 5, 6, 7, and 8 are top views of burners,-illustrating diiferent species of the invention.

Like reference letters and numbers indicate corresponding parts in all the figures.

From an upper or reservoir tank A through its valved neck a the oil is fed into a lower tank B, in which a uniform oil-level is automatically maintained, as in the students lamp. From this lower tank 13 a burner-supporting pipe 0 extends downwardly and horizontally to the required length for one or more burners and terminates in a capped end 0, through which the pipe may be readily. cleaned out when necessary to free it from water or sediment. Each burner is connected with the pipe O by a valve-piece D or D The valve-piece D is V-shaped, with its legs 1 and 2, Fig. 2, respectively vertical and upwardly inclined. The leg 1 is coupled at its upper end to a Y- shaped tubular connection E, whose lateral branches 3 and 4 are soldered fast to the bottom of the trough-shaped annular burner F at diametrically opposite points and communicate with itsinterior. The valve-piece D is interposed between the pipe 0 and connection E in like manner. The burnerF is thus supported on a level with the lower tank B, with the oil-level at about mid-depth of the customary lighting-wick G within the burner when the flow of oil is unobstructed. Within the central air-space of this burner F a diaphragm H, of perforated sheet metal, fits tightly against the bottom of the inner burnershoulder h, Fig. 2, as heretofore, and an airregulating dome I, of novel construction, is

seamed to the flange 5, Fig. 2, that rises above said inner shoulder. This attachment Iis composed of perforated side walls 6 and a dome-shaped sheet-metal cap 7, united by a circumferential seam 8, Fig. 2, and the cap 7 is provided with one or more apertures 2', through which a definitely limited and directed supply of air passes.

The customary combustion-drum J rests upon the burner F and incloses its attachment I, as in Fig. 2. The drum J preferably comprises outer and inner perforated cylinders 9 and 10, forming between them the flame-chamber, the outer cylinder 9 being longest, and a cover or cap 11 at the upper end of the inner cylinder 10 covering the central air-chamber, substantially as shown and described in Letters Patent No. 424,964, granted the 8th of April, 1890, for Frank R. Fennessys Improvement in oil or gas burners, with or without the customary sheet-metal jacket 12'surrounding said outer cylinder. Within said air-chamber of the combustion-drum J a supplemental perforated cylinder 13 preferably extends downward from the cap 11130 a point below mid-height of the cone. The perforated cylinders 9, 10, and 13 are fixedly united, one concentrically within another, by radial or, more properly speaking, crossed wires 14 and 15, Fig; 2, as set forth in the specification of Letters Patent No. 334,166,

IOQ

ary cold handle j provides for manipulating the drum J as a whole and is attached to the jacket 12 or, in its absence, to the outer perforated cylinder 9. The burner-dome 1, projecting within the initial yellow flame when the oil within the burner F is lighted at the upper edge of the Wick G, protects such flame against drafts to a sufficient extent to render the lighting operation practically free from the escape of smoke or odor. It then serves as a guide in centering the drum J upon the shoulders h and h of the burner, so that the drum may be quickly adjusted without danger of misplacement, and, finally, it serves in combination with the burner-diaphragm H and the supplemental perforated cylinder 13 of the drum J to regulate the supply of air to the interior of the flame, so as to insure a practically steady odorless blue flame of uniform height. The sheet-metal top '7 of the dome I causes most of the air rising through the burner-diaphragm H to be fed in the form of jets against the inner perforated wall of the flamechamber immediately above the burner F, where it most readily mixes with the vapor within said chamber, supplying the vapor with the oxygen necessary to the combustion of its carbon particles. Another large portion of such air passes upward between the inner perforated cylinders 10 and 13 and is fed through the inner cylinder 10 to the flame-chamber as combustion pro gresses. Another and the coldest portion of the air passes upward through the aperture or apertures i of the dome I, as aforesaid, and serves to cool the interior of the drum J and by its escape through the inner perforated cylinders 10 and 13 at top to assist in completing the combustion of ofiensive gases. It also preferably serves to regulate the flame as to uniformity in height. For this purpose a central oblong aperture 1' is preferably formed in the cap 7 of the dome l, as in Figs. 1, 2, and 4. After the burner is lighted and the blue flame appears at the top of the flamechamber if there is any irregularity in the flame the drum J is turned by means of the handlej until the top of the flame is even. The necessity for such adjustment is due to unavoidable irregularities in the perforated cylinders 9, 10, and 13 and the drum 12 and imperfections in their concentric location with reference to one another. A central cross-shaped aperture i Fig. 5, answers substantially the same purpose, but is liable to be impaired by accidentally bending its inner corners. Four (more or less) apertures 2' Fig. 6, equidistant from the center, answer substantially the same purpose, but require a number of punchings. A central round aperture 2', Fig. 7, answers the main purpose of such apertures, but not for regulating the height of the flame. The other objects of the dome I may be accomplished without such aperture or apertures i or i or i or 2', as illustrated by Fig. 8.

The valve-piece D, Figs. 1 and 2, is supplemented,.as heretofore, by an oil-tight tube K, extending obliquely upward in line with the leg 2 of said valve-piece to a point above the oil-level, Where it is provided with a cap 7t, soldered fast, as is the tube K, to secure against accidental or mischievous withdrawal of the needle-valve L, which is provided with a cross-pin Z, Fig. 2, or an equivalent stop to contact with said cap when the valve is fully opened.

In place of the V-shaped valve-piece D, tube K,and long needle-valve L an L-shaped valvepiece D may preferably be interposed between the oil-pipe C and the Y-shaped connection E, as in Fig. 3, said valve-piece being provided with a short key-shaped valve L and these parts respectively with stops k and P, Fig. 3, to limit the opening movement of the valve. Other like modifications will suggest themselves to those skilled in the art.

The term oil-stove as herein used is intended to include stoves either for cooking or for heating adapted to burn kerosene or other varieties of liquid fuel herein generically termed oil.

Having thus described said improvement, I claim as my invention and desire to patent under this specification 1. The combination, in a blue-flame oilstove, of an annular burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a domeshaped attachment secured to said flange and constructed with perforated side walls, and a combustion-drum embracing said burner attachment and seated on said shoulders.

2. The combination, in a blue-flame oilstove, of an annular trough-shaped burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a dome-shaped attachment seamed to said flange and constructed with perforated side walls, and a combustion-drum embracing said burner attachment and seated on said shoulders.

3. The combination, in a blue-flame oilstove, of an annular burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, adomeshaped attachment seamed to said flange and constructed with perforated side walls and an apertured cap, and a combustion-drum embracing said burner attachment and seated on said shoulders.

4. The combination, in a blue-flame oilstove, of an annular burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a domeshaped attachment seamed to said flange and constructed with perforated side walls, and a cap having a central non-circular aperture, a combustion-drum embracing said burner attachment and seated on said shoulders, and means for turning said drum upon said shoulders.

5. The combination, in a blue-flame oilstovc, of an annular .burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a domeshaped attachment seamed to said flange and constructed with perforated side walls and a cap having a central oblong aperture, a combustiondrum embracing said burner attachment and seated on said shoulders, and means for turning said drum upon said shoulders.

6. The combination, in a blue-flame oilstove, of an annular burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a domeshaped attachment seamed to said flange and constructed with perforated side walls and an apertured cap, and a combustion-drum embracing said burner attachment, provided with a supplemental perforated cylinder above said attachment within its air-space, and seated on said shoulders.

7. The combination, in a blue-flame oilstove, of an annular trough-shaped burner having concentric shoulders at top and an up wardly-projecting flange on the inner shoulder, a perforated diaphragm beneath said inner shoulder and in contact therewith, a dome shaped attachment seamed to said flange and having perforated side walls, and a combustion-drum comprising concentric perforated cylinders seated on said shoulders.

8. The combination, in a blue-flame oilstove, of an annular trough-shaped burner having concentric shoulders at top and an upwardly-projecting flange on the inner shoulder, a perforated diaphragm beneath said inner shoulder and in contact therewith, a dome shaped attachment seamed to said flange and having perforated side walls, and a combustion-drum comprising concentric perforated cylinders seated on said shoulders and a supplemental perforated cylinder arranged concentrically within its air-space above said dome-shaped burner attachment.

GUY W. FERDON. Witnesses:

WILLIE B. WESTERVELT, RAY S. MILLER. 

